Kingdom Rush: Vengeance just got updated once again to add more content to the game. This addition, called The Frozen Nightmare, adds three new levels, five new enemies, two new heroes, and some new achievements.

Overall, it’s not a huge amount of additional content, but it is free, so it’s hard to complain about. In case you’re thinking about whether it’s worth buying or re-downloading Kingdom Rush Vengeance to check out The Frozen Nightmare, here’s everything you need to know about it.